3.6V 5000mAh 21700 Lithium-Ion Cell with NCM/NMC Cathode and Low Temperature Performance for Industrial Applications
Price:
$6.0 ~ $1.5
MOQ:
100pcs
Delivery Time:
3 ~ 30 days
Brand:
OiD
Product Description
Product Overview
The 21700-5000mAh lithium-ion rechargeable cell is a high-capacity cylindrical battery designed for applications requiring reliable power delivery across a wide temperature range. With a nominal voltage of 3.6V and robust low-temperature performance, this cell is suitable for use in demanding environments.
Electrical Specifications
| Parameter | Specification |
|---|---|
| Nominal Capacity | 5000mAh |
| Minimum Capacity | 4950mAh |
| Energy Density | 253Wh/kg |
| Nominal Voltage | 3.6V |
| Internal Resistance | ≤25mΩ (AC Impedance, 1000 Hz) |
| Charge Cut-off Voltage | 4.20V |
| Discharge Cut-off Voltage | 2.50V |
| Standard Charge Current | 0.5C (2500mA) |
| Standard Discharge Current | 1C (5000mA) |
| Operating Temperature (Charge) | 0°C to 45°C |
| Operating Temperature (Discharge) | -40°C to 60°C |
| Dimensions (Diameter × Height) | 21.65±0.2mm × 70.95±0.2mm |
| Weight | ≤73g |
Performance Characteristics
Discharge Efficiency at Various Rates (25°C)
| Rate | Current | Discharge Efficiency |
|---|---|---|
| 0.2C | 1000mA | 100% |
| 0.5C | 2500mA | ≥95% |
| 1C | 5000mA | ≥93% |
| 2C | 10000mA | ≥90% |
Low-Temperature Discharge Performance
| Temperature | Discharge Current | Cut-off Voltage | Efficiency |
|---|---|---|---|
| -20°C | 1C (5000mA) | 2.0V | ≥80% |
| -30°C | 0.5C (2500mA) | 2.0V | ≥75% |
| -40°C | 0.2C (1000mA) | 2.0V | ≥60% |
Cycle Life and Storage
- Cycle Life: ≥70% capacity retention after 800 cycles (0.5C charge / 1C discharge, 4.20V–2.75V)
- Storage (25°C, 28 days): Residual capacity ≥85%, recovery capacity ≥90%
- Storage (55°C, 7 days): Residual capacity ≥85%, recovery capacity ≥90%
Safety Features
- Overcharge protection
- Over-discharge protection
- Short-circuit protection
- Thermal stability testing
- Compliant with international safety standards
Applications
- Portable medical devices
- Low-temperature industrial equipment
- Outdoor and backup power systems
- High-drain consumer electronics
Notes
- Avoid charging below 0°C or above 45°C
- Do not discharge below 2.5V to prevent cell damage
- Store in a dry environment (0–50% RH) at 10–35% state of charge (SOC) for long-term storage
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Jianheng Technology Co., Ltd.
Location
2# Building, Shimao Park, Zhenhuan Rd, Pingshan, Shenzhen, China.
Contact Person
Alan Yuan